Skip to main content

A/C condensation is not a cause for concern

If on a humid day, you turn on your car’s A/C system and a fine mist blows out of the vents, don’t be alarmed. You are merely witnessing a small amount of water vapor exiting the system.
Moisture can cling to the evaporator and interior air distribution components and if it has not had a chance to evaporate naturally may condense into mist. This is very similar to the contrails visible in the sky by airplanes when atmospheric conditions are right.
This condensation can also be visible exiting the bottom of your car via the drain tube from the evaporator housing. If you have been parked after running the A/C and pull away and find a small puddle of water from under your car it is condensation exiting the A/C system.
When having your mobile A/C system professionally serviced, insist on proper repair procedures and quality replacement parts. Insist on recovery and recycling so that refrigerant can be reused and not released into the atmosphere.  
You can E-mail us at or visit to find a Mobile Air Conditioning Society repair shop in your area. Visit to find out more about your car’s mobile A/C and engine cooling system.

0 responses to “A/C condensation is not a cause for concern”

  1. LaRon storck says:

    My 2002 Chevy truck air has worked perfect for 13 years.just recently it hasn’t been blowing as cold and I noticed there’s no condensation draining on the ground? Any help would b much appreciated, thank you!

  2. Take it to a professional A/C shop for an accurate diagnosis. MACS member shops are listed at under resources

Leave a Reply

Your email address will not be published. Required fields are marked *